Beijing, March 6 -- China has said that the US is using fentanyl as a "flimsy excuse" to raise tariffs on Chinese imports and "if war is what the US wants," be it tariff or trade war, Beijing is ready to "fight till the end". The statement by Chinese foreign ministry spokesperson Lin Jian came after Trump doubled the tariff he slapped last month on Chinese products to 20%. "The fentanyl issue is a flimsy excuse to raise US tariffs on Chinese imports. Our countermeasures to defend our rights and interests are fully legitimate and necessary," Lin said....